Machine for making pies.



. No- 786.816. f PA'rBNTED APR. 1i, 1905. f

v J. G. HUT-GHISON.

MACHINE FOR MAKING PIE'S. APPLIOATION fum; snPT.v2z,`1so4.

z'sHEETs-SHBBT 1.

l TTDRNEY.

' UNITED STATES` Patented April 11, 1905.

PATENT OEEIcE.

' MACHINE FOR MAKING PIES- SPECIFICATION forming part of Letters PatentNo. 786,816, dated April 11, 1905.

n Application filed September 22, 1904. Serial No. 225,430.

To all whom, it may con/cern,.-

Be it known that I, J osnrH GHUToHIsoN,

, a citizen of the United States, residing atPhiladelphia,in the countyof Philadelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Machines for Making Pies, of which thefollowingis a speciiication.

My invention relates to improvements in" that class of piemachinesdescribed and claimed in Letters Patent granted to David S. Williams,assignor to Joseph C. Hutchison, No. 740,346, dated September 29, 1903,and in further improvements in the details of construction of themachine shown and described in the pending application of David S.Williams, filed May 16, 1904, Serial No. 208,164.

I trated in the accompanying pages of drawings,

in which- Figure 1 illustrates a side elevation of a piemachine with myimprovements in position. Fig. 2 illustrates a plan view of the same.Fig. 3 represents a'detached perspective view of the top-crust-formingmechanism, together with my improved devices for releasing the crustfrom the plunger and apron. Fig. 4 shows a detached perspective view ofa portion of the conveyer and the rotary brush employed to remove scrapsof dough, flour, &c., from the same; and Figo is an enlarged sideelevation of a portion of the delivery end of the machine, showing theconstruction and arrangement of the .trimming and crimping devices.

A represents the mainframe of the machine, provided with bearings a a toreceive shafts b' upon which are mounted sprocketwheels B B', carryingthev conveyer C. The conveyer is constructed in the same manner as thatdescribed in the inventions previously referred to, consisting of aseries of members fitted to receive pie-plates and united together toform a continuous belt.

- The conveyer C may be manually supplied vwith plates or fed bya devicesimilar to that shown in the patent' above referred to, after which eachplate in turn is provided with a portion of dough which is pressed intothe form of a lower crust by a plunger comprising a portion of alower-crust-forming mechanism E. lThe lower crusts are then carriedforward and brought under the action of a filler mechanism E, where ameasured quantity of fruit or meat is obtained, after which theunfinished pie is carried forward to receive the top crust.

The top-crust-forming mechanism, which is designated by the letter G,comprises an apron G', mounted upon rollers g', g2, and g3, the latterof which has a shaft g4, upon which is mounted a sprocket-wheel g5,driven from the shaft t by a sprocketwheel g and sprocket-chain Q7. Atthe receiving end of the apron G is a iiour-sifter, consisting of atrough G11 extending transversely across the apron G and having aperforated bottom. The trough G11 is provided with trunnions g gu, whichare supported in brackets Q12 gn.

The flour contained in the trough is sifted upon the apron G' byimparting to the trough a quick oscillating motion through the agency ofa lever g1g, which projects downward from the trough and impingesagainst the face of a ratchet-wheel gnou the shaft g4. The lever Q13 isheld in engagement with the ratchetwheel g by a spring S, one end ofwhich is fastened to the trouglr and the other to one ofthe brackets012, Below the apron G is a stationary bed-plate G2, and above the apronis a movable plunger G3. This plunger 1s adjustably secured to across-head G4, guided in uprights G5 G5 and operated by cranks G'J GG onthe shaft G7 through the medium of connecting-rods Q7 g?. The shaft G7is driven from a main driving-shaft B, which has fast and loose pulleysB2 and B3, together with a pinion Bwhich meshes with a spur-gear B5,mounted on the shaft G7..

The cake of dough from which the crust is IOO to be molded is manuallyplaced upon the apron G in front of the trough G11 and is broughtforward by the apron and placed under the action of the plunger G3,where it is pressed into the form of a pie-crust of the requisite sizeand thinness. In order to prevent the thin crust from adhering to theplunger as the latter rises, I insert between the plunger and the aprona stripper GS, composed of end pieces g8 g8, guided in the uprights G5,and thin metal strips gg g, which are projected across the face of theplunger and secured fo said end pieces. The metal strips are heldagainst the face of the plunger by springs S Son either side of themachine, the lower ends of these springs being connected to the endpieces g8 and the upper ends to the uprights G5. During the downwardmotion of the plunger the stripper is normally carried with it until ithas reached the lowest point of its downward movement, when by theaction of spring-pressed latches gw gw engaging the top of each of theend pieces the stripper is caused to remain down for a time while theplunger is rising. When the plunger has advanced a certain distance inits upward movement, pins gls g18 on the crosshead G4 come in contactwith the sides of the latchesand release them from engagement with theend pieces g8 g8, allowing the springs S to return the stripper to itsnormal position. The finished crust is then carried by the apron G anddeposited upon the lower crust, carried by the conveyer C. The shaftcarrying sprocket-wheels supporting one end of the conveyer, is providedwith a star- Wheel C', operated by a corresponding ratchet member C2 ona shaft C3, and this shaft is in turn operated from the maindriving-shaft B by a gear-wheel C4 engaging the pinion Bf.

The partly-finished pie, together with the plate, is lifted from the endof the conveyer by an arm H, which is fulcrumed to the frame of themachine at a point /L and operated to eject the plate and its contentsfrom the conveyer by apin 7L on the ratchet member G2. rIhe platecontaining the pie is then moved forward over guides 7a2 h2 by a hook7a3 in the upper end of a bell-crank lever H3, which is connected to arocking lever H4 by a link LB. The rocking lever H4 is fulcrumed to theframe of the machine at a point /i and is operated by a connecting-rodH5 and one of the cranks G, the latter of which is mounted upon theshaft G7. The hook h3 of the bell-crank lever H3 conveys the plate andpie from the conveyer C to one of the plates I5 in a turn-table I, bywhich the plate and its contents are further carricd to a stationary dieJ, where the edges of the crusts are trimmed and crimped and the plateand its contents prepared for baking.

The turn-table I comprises a central shaft I, mounted upon a hub I2,having a number of radial arms I3, provided at their end with spindlesI4, upon which are guided the hubs e'" of the plates I5. The turn-table]is intermittently turned by being driven from the shaft through theagency of sprocket-wheels` el and 7, sllirocket-chain 8, and bevel-gearsf" and 10. The bevel-gear i" is fastened to the shaft I of theturn-table, while the bevel-gear @'10, as well as the sprocket-wheel 7,is mounted upon a shaft I, supported in bearings in a frame I7.

The trimming-die J is supported by a bracket J and has a tapered edgey', against which the rim of the pie-plate is pressed by an upwardmovement of the plates In, thus severing the irregular edges of thepie-crusts.

In addition to its outer cutting-surface the die J is provided with aninner ring K, which is suitably crimped or corrugated for the purpose ofimparting a like design to the edge of the crust and at the same timeunite the upper and lower crusts more closely together. The plates I'i,one at a time, are brought under the action of the die J by the rockinglever H4, which has fulcrumed at one of its ends a rod J",carrying anotched plate J4, which is guided in the frame A.

Each of the hubs al of the plates I'rl has a pin v1, which is firstacted upon by the notched plate Ji to bring the plate I into alinementwith the die J and afterward by a further movement cause the trimmingand crimping of the crusts carried by the plate Ir. After the trimmingand crimping operation has been performed the plate containing the pieis lifted from the turn-table and conveyed to the oven for baking.

In order to remove the scraps of dough, flour, and the like from theconvcyer C, I employ a rotary brush L, the shaft Z of which is journaledin bearings in the frame A and which may be driven from the main drivingshaft B by any suitable train of gearing. As shown in thedrawings, this driving mechanism comprises a large sprocket wheel L,mounted upon the shaft B, a small sprocketwheel Le, mounted on the shaftand a sprocket-chain L3, uniting the sprocket-wheels together.

The final treatment which the pie receives is that of covering the uppercrust with a fine spray of a material which is adapted to cause abrowning and glazing of the top crust. This is accomplished by means ofan atomizer M, comprising a receptacle m, provided at the top with anatomizing-tube m, supplied with air b a hose m3 leading from a nim) M',

The pump is driven from the shaft I by means of a connecting-rod m4 andcrank mi.

Having described my invention, what l claim, and desire to secure byLetters Patent, is-

1. In a machine for making pies in combination, a plate-conveyer, aplunger mechanism, and a stripper adapted to lnove with the plunger, toleave the plunger at the end of its IOO stripper to move with theplunger in its downward movement, to dwell and to again move with theplunger in its upward movement, substantially as specified.

3. In a machine for making pies in combination, a conveyer, a plungermechanism, a stripper, means to cause the stripper to move downward withthe plunger, a latch to engage and hold the stripper at the extent ofits downward course and means controlled by the plunger for releasingthe latch, substantially as specilied.

4. In a pie-machine, in combination with the plate-conveyer and thecrust-forming mechanism, a plate-ejector located at the discharge end ofthe conveyer,a stationary trimming and crimping die, and means forconveying the plate and its contents from the conveyer to the trimmingand crimping die, substantially as specilied.

5. In a pie-machine, in combination with the plate-convcyer mechanismand crust-feeding mechanism, a stationary trimming and crimping die,'and a turn-table arranged to lift the plate and its contents and bringthe same into engagement with the trimming and crimping die,substantially as speciiied.

6. In apie-machine, in combination with the plate-conveyer andcrust-forming mechanism, a stationary trimming and Vcrimping die, aturn-table, means for lifting the plate and its contents from theplate-conveyer and depositing the same upon the turn-table and means forelevating a portion of the turn-table to bring the plate and itscontents into engagement with the trimming and crimping die,substantially as specied.

7. In apie-machine in combination, a plateconveyer, a crust-formingmechanism, an apron for said crust-forming mechanism, a duster for saidapron, a plunger, a stripper adapted to move to and from said plunger, atrimming and crimping die, means for conveying the pie to and from saiddie, and a r0- tary brush for cleaning the conveyer, substantially asspecied.

8. In a pie-mach ine, in combination with the conveyer mechanism andupper and lower crust-forming mechanism, a receptacle adapted to containa glazing material, a sprayingnozzle mounted upon said receptacle and apneumatic device for operating the nozzle, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH C. HUTCHISON.

Witnesses:

ARNOLD KATz, NORMAN W. ELLIOTT.

